CNV-23392: Bump base image to rehl 9

[openshift-ci-robot]

@nunnatsa: This pull request references CNV-23392 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.16.0" version, but no target version was set.

In response to [this](https://github.com/openshift/must-gather/pull/402): > Instructions for interacting with me using PR comments are available [here](https://prow.ci.openshift.org/command-help?repo=openshift%2Fmust-gather). If you have questions or suggestions related to my behavior, please file an issue against the [openshift-eng/jira-lifecycle-plugin](https://github.com/openshift-eng/jira-lifecycle-plugin/issues/new) repository.

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: nunnatsa Once this PR has been reviewed and has the lgtm label, please assign sferich888 for approval. For more information see the Kubernetes Code Review Process.

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[nunnatsa]

/ok-to-test

[openshift-ci[bot]]

@nunnatsa: all tests passed!

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[ingvagabund]

https://github.com/openshift/release/tree/master/ci-operator/config/openshift/must-gather needs to be updated first.

[openshift-bot]

Issues go stale after 90d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle stale. Stale issues rot after an additional 30d of inactivity and eventually close. Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[ardaguclu]

https://github.com/openshift/must-gather/pull/421 will supersedes this PR

[openshift-bot]

Stale issues rot after 30d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle rotten. Rotten issues close after an additional 30d of inactivity. Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle rotten /remove-lifecycle stale

[openshift-merge-robot]

PR needs rebase.

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[sferich888]

#421 merged so I believe this can be closed

/close

[openshift-ci[bot]]

@sferich888: Closed this PR.

In response to [this](https://github.com/openshift/must-gather/pull/402#issuecomment-2197472620): >[#421](https://github.com/openshift/must-gather/pull/421) merged so I believe this can be closed > >/close Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository.